what question?????????????????
Answer:
Domain means all the numbers that the function passes on the x-axis. for example, when you have a straight line horizontally without stopping, your domain is ∞ since it passes every number on the x axis. The same applies to the y-axis, but now it's every number that passes the y-axis of up and down. A straight line going up and down
without stopping has a range of ∞
Answer:
59 degrees
Step-by-step explanation:
law of cosines states that
for sides A B C and angle c opposite to side C,

cos(b) = 
cos-1(23/45) = b
b = 59